Number of laryngeal cartilages, primary bronchi, vocal cords (true plus false), lobes of the lungs (right plus left) respectively in man are

Options

A. 9, 2, 4, 5
B. 2, 2, 2, 2
C. 6, 4, 2,9
D. 2, 4, 4, 2

Answer

To solve the question regarding the number of laryngeal cartilages, primary bronchi, vocal cords, and lobes of the lungs in a man, we can break it down step by step:

### Step 1: Determine the number of laryngeal cartilages
- In humans, there are a total of **9 laryngeal cartilages**. These include the thyroid, cricoid, epiglottis, and paired arytenoid, corniculate, and cuneiform cartilages.

### Step 2: Determine the number of primary bronchi
- There are **2 primary bronchi** in humans. These are the left and right bronchi that branch off from the trachea into each lung.

### Step 3: Determine the number of vocal cords
- Vocal cords consist of true vocal cords and false vocal cords. In total, there are **4 vocal cords** (2 true vocal cords and 2 false vocal cords).

### Step 4: Determine the number of lobes of the lungs
- The human lungs are divided into lobes: the right lung has **3 lobes** (upper, middle, lower) and the left lung has **2 lobes** (upper and lower). Therefore, in total, there are **5 lobes of the lungs**.

### Final Compilation
Now, we can compile the numbers we found:
- Laryngeal cartilages: **9**
- Primary bronchi: **2**
- Vocal cords (true + false): **4**
- Lobes of the lungs (right + left): **5**

Thus, the answer to the question is:
**9, 2, 4, 5**.

### Conclusion
The correct option from the choices provided is **option A: 9245**.

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